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Contract OI history

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Dec 18, 2026 EXPIRATION

MSFT $475.00 Put

MSFT261218P00475000

Latest saved OI14,894Oct 23, 2026
Last change+284vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $475.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 16,1968,0980 2026-10-09: 16,196 OI2026-10-13: 16,189 OI2026-10-14: 16,189 OI2026-10-15: 15,633 OI2026-10-16: 16,107 OI2026-10-21: 14,610 OI2026-10-23: 14,894 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MSFT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing14,894+284
Oct 21, 202614,610-1,497
Oct 16, 202616,107+474
Oct 15, 202615,633-556
Oct 14, 202616,1890
Oct 13, 202616,189-7
Oct 09, 202616,196No prior observation